How do you make these for waves in this graph on a piece of graph paper?

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.

If element x has 99 protons how many electrons does it have